<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        a::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            left: 0;
            z-index: -1;
            background: #58a;
            transform: skewX(-45deg);
        }
        a {
            width: 100px;
            height: 40px;
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
            color: #fff;
            text-decoration: none;
            float: left;
        }
        a:hover::before{
            background: #09BB07;
        }

    </style>
</head>
<body>
<a href="http://suo.im/1yaTY3">
    HOME
</a>
<a href="http://suo.im/1yaTY3">
    HOME
</a>
<a href="http://suo.im/1yaTY3">
    HOME
</a>

</body>
</html>